Klasse: Oligohymenophorea
Systematics :
| Kingdom | Det gule riket (Chromista) | |||||
| Phylum | Flimmerdyr (Ciliophora) | |||||
| Klasse | Oligohymenophorea | |||||
| Order | Peniculida | |||||
| Genus | Tøffeldyr (Paramecium) | |||||
| Order | Peritrichia | |||||
| Family | Vorticellidae | |||||
| Genus | Klokkedyr (Vorticella) | |||||
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Responsible editor: Doris Jorde